./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 127e3a0cb76048ef1bf90b67c9d3d0888a5502aaa9e60e916cbe6b2df2fd80c6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:46:33,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:46:33,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:46:33,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:46:33,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:46:33,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:46:33,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:46:33,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:46:33,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:46:33,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:46:33,831 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:46:33,832 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:46:33,832 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:46:33,834 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:46:33,835 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:46:33,835 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:46:33,836 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:46:33,836 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:46:33,837 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:46:33,837 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:46:33,838 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:46:33,838 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:46:33,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:46:33,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:46:33,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:46:33,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:46:33,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:46:33,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:46:33,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:46:33,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:46:33,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:46:33,845 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:46:33,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:46:33,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:46:33,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:46:33,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:46:33,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:33,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:46:33,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:46:33,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:46:33,848 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:46:33,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:46:33,850 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:46:33,850 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:46:33,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:46:33,851 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 127e3a0cb76048ef1bf90b67c9d3d0888a5502aaa9e60e916cbe6b2df2fd80c6 [2023-11-19 04:46:34,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:46:34,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:46:34,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:46:34,226 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:46:34,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:46:34,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i [2023-11-19 04:46:37,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:46:37,725 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:46:37,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i [2023-11-19 04:46:37,737 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data/a2d64e7a2/01d1d2a230f645519c5613a88424ae4f/FLAG81e70bfaa [2023-11-19 04:46:37,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data/a2d64e7a2/01d1d2a230f645519c5613a88424ae4f [2023-11-19 04:46:37,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:46:37,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:46:37,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:37,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:46:37,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:46:37,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:37" (1/1) ... [2023-11-19 04:46:37,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136692a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:37, skipping insertion in model container [2023-11-19 04:46:37,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:37" (1/1) ... [2023-11-19 04:46:37,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:46:38,008 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i[915,928] [2023-11-19 04:46:38,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:38,043 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:46:38,056 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i[915,928] [2023-11-19 04:46:38,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:38,085 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:46:38,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38 WrapperNode [2023-11-19 04:46:38,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:38,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:38,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:46:38,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:46:38,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,126 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 69 [2023-11-19 04:46:38,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:38,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:46:38,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:46:38,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:46:38,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:46:38,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:46:38,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:46:38,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:46:38,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (1/1) ... [2023-11-19 04:46:38,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:38,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:38,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:46:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:46:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:46:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:46:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:46:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:46:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:46:38,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:46:38,347 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:46:38,350 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:46:38,520 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:46:38,622 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:46:38,624 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:46:38,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:38 BoogieIcfgContainer [2023-11-19 04:46:38,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:46:38,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:46:38,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:46:38,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:46:38,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:46:37" (1/3) ... [2023-11-19 04:46:38,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef444ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:38, skipping insertion in model container [2023-11-19 04:46:38,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:38" (2/3) ... [2023-11-19 04:46:38,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef444ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:38, skipping insertion in model container [2023-11-19 04:46:38,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:38" (3/3) ... [2023-11-19 04:46:38,650 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-38.i [2023-11-19 04:46:38,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:46:38,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:46:38,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:46:38,752 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66b0d598, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:46:38,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:46:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 04:46:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 04:46:38,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:38,768 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:38,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:38,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:38,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1746240737, now seen corresponding path program 1 times [2023-11-19 04:46:38,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:38,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355915656] [2023-11-19 04:46:38,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:38,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:46:39,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:46:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:46:39,195 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:46:39,197 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:46:39,199 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:46:39,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:46:39,206 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:46:39,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:46:39,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:46:39 BoogieIcfgContainer [2023-11-19 04:46:39,287 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:46:39,290 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:46:39,290 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:46:39,290 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:46:39,291 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:38" (3/4) ... [2023-11-19 04:46:39,296 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:46:39,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:46:39,299 INFO L158 Benchmark]: Toolchain (without parser) took 1531.95ms. Allocated memory is still 174.1MB. Free memory was 125.8MB in the beginning and 137.7MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:46:39,300 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:46:39,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.49ms. Allocated memory is still 174.1MB. Free memory was 125.8MB in the beginning and 114.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:46:39,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.02ms. Allocated memory is still 174.1MB. Free memory was 114.5MB in the beginning and 112.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:46:39,305 INFO L158 Benchmark]: Boogie Preprocessor took 48.72ms. Allocated memory is still 174.1MB. Free memory was 112.4MB in the beginning and 111.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:46:39,312 INFO L158 Benchmark]: RCFGBuilder took 453.74ms. Allocated memory is still 174.1MB. Free memory was 111.4MB in the beginning and 97.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:46:39,313 INFO L158 Benchmark]: TraceAbstraction took 653.26ms. Allocated memory is still 174.1MB. Free memory was 96.2MB in the beginning and 137.7MB in the end (delta: -41.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:46:39,315 INFO L158 Benchmark]: Witness Printer took 8.46ms. Allocated memory is still 174.1MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:46:39,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.49ms. Allocated memory is still 174.1MB. Free memory was 125.8MB in the beginning and 114.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.02ms. Allocated memory is still 174.1MB. Free memory was 114.5MB in the beginning and 112.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.72ms. Allocated memory is still 174.1MB. Free memory was 112.4MB in the beginning and 111.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.74ms. Allocated memory is still 174.1MB. Free memory was 111.4MB in the beginning and 97.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 653.26ms. Allocated memory is still 174.1MB. Free memory was 96.2MB in the beginning and 137.7MB in the end (delta: -41.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.46ms. Allocated memory is still 174.1MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 35, overapproximation of someUnaryFLOAToperation at line 35, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 256.2; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 0; [L25] unsigned short int var_1_5 = 0; [L26] float var_1_6 = 10.125; [L27] float var_1_7 = 9.4; [L28] unsigned long int var_1_8 = 50; [L63] isInitial = 1 [L64] FCALL initially() [L65] COND TRUE 1 [L66] FCALL updateLastVariables() [L67] CALL updateVariables() [L42] var_1_2 = __VERIFIER_nondet_uchar() [L43] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=1281/5, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L44] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L45] var_1_3 = __VERIFIER_nondet_uchar() [L46] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L47] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=0, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L48] var_1_5 = __VERIFIER_nondet_ushort() [L49] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L50] CALL assume_abort_if_not(var_1_5 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_5 <= 65535) VAL [isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=81/8, var_1_7=47/5, var_1_8=50] [L51] var_1_6 = __VERIFIER_nondet_float() [L52] CALL assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=1281/5, var_1_7=47/5, var_1_8=50] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=1281/5, var_1_7=47/5, var_1_8=50] [L53] var_1_7 = __VERIFIER_nondet_float() [L54] CALL assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=1281/5, var_1_7=65540, var_1_8=50] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=1281/5, var_1_7=65540, var_1_8=50] [L67] RET updateVariables() [L68] CALL step() [L32] var_1_8 = var_1_5 [L33] COND TRUE var_1_2 || var_1_3 [L34] COND FALSE !(var_1_8 != var_1_8) [L37] var_1_1 = var_1_6 [L68] RET step() [L69] CALL, EXPR property() [L59-L60] return ((var_1_2 || var_1_3) ? ((var_1_8 != var_1_8) ? (var_1_1 == ((float) ((((-0.4f) > (((((var_1_6 + var_1_7) < 0 ) ? -(var_1_6 + var_1_7) : (var_1_6 + var_1_7))))) ? (-0.4f) : (((((var_1_6 + var_1_7) < 0 ) ? -(var_1_6 + var_1_7) : (var_1_6 + var_1_7)))))))) : (var_1_1 == ((float) var_1_6))) : 1) && (var_1_8 == ((unsigned long int) var_1_5)) ; [L69] RET, EXPR property() [L69] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=1281/5, var_1_7=65540, var_1_8=65535] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=1281/5, var_1_2=1, var_1_3=0, var_1_5=65535, var_1_6=1281/5, var_1_7=65540, var_1_8=65535] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:46:39,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 127e3a0cb76048ef1bf90b67c9d3d0888a5502aaa9e60e916cbe6b2df2fd80c6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:46:42,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:46:42,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:46:42,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:46:42,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:46:42,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:46:42,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:46:42,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:46:42,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:46:42,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:46:42,540 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:46:42,541 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:46:42,541 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:46:42,543 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:46:42,544 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:46:42,544 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:46:42,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:46:42,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:46:42,546 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:46:42,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:46:42,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:46:42,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:46:42,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:46:42,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:46:42,550 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:46:42,551 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:46:42,551 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:46:42,552 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:46:42,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:46:42,553 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:46:42,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:46:42,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:46:42,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:46:42,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:42,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:46:42,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:46:42,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:46:42,557 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:46:42,557 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:46:42,559 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:46:42,559 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:46:42,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:46:42,560 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 127e3a0cb76048ef1bf90b67c9d3d0888a5502aaa9e60e916cbe6b2df2fd80c6 [2023-11-19 04:46:43,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:46:43,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:46:43,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:46:43,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:46:43,055 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:46:43,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i [2023-11-19 04:46:46,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:46:46,684 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:46:46,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i [2023-11-19 04:46:46,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data/005770561/e4b9360727fe4063ba45a66a66d7c405/FLAGc01176d66 [2023-11-19 04:46:46,713 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/data/005770561/e4b9360727fe4063ba45a66a66d7c405 [2023-11-19 04:46:46,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:46:46,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:46:46,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:46,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:46:46,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:46:46,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:46" (1/1) ... [2023-11-19 04:46:46,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4397d953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:46, skipping insertion in model container [2023-11-19 04:46:46,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:46" (1/1) ... [2023-11-19 04:46:46,760 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:46:46,957 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i[915,928] [2023-11-19 04:46:47,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:47,043 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:46:47,087 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-38.i[915,928] [2023-11-19 04:46:47,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:47,173 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:46:47,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47 WrapperNode [2023-11-19 04:46:47,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:47,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:47,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:46:47,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:46:47,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,276 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 69 [2023-11-19 04:46:47,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:47,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:46:47,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:46:47,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:46:47,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,331 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:46:47,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:46:47,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:46:47,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:46:47,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (1/1) ... [2023-11-19 04:46:47,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:47,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:47,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:46:47,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:46:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:46:47,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:46:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:46:47,492 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:46:47,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:46:47,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:46:47,618 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:46:47,621 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:46:47,919 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:46:47,930 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:46:47,930 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:46:47,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:47 BoogieIcfgContainer [2023-11-19 04:46:47,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:46:47,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:46:47,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:46:47,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:46:47,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:46:46" (1/3) ... [2023-11-19 04:46:47,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79db4048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:47, skipping insertion in model container [2023-11-19 04:46:47,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:47" (2/3) ... [2023-11-19 04:46:47,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79db4048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:47, skipping insertion in model container [2023-11-19 04:46:47,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:47" (3/3) ... [2023-11-19 04:46:47,949 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-38.i [2023-11-19 04:46:47,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:46:47,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:46:48,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:46:48,047 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53b0cdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:46:48,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:46:48,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 04:46:48,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 04:46:48,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:48,069 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:48,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:48,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:48,077 INFO L85 PathProgramCache]: Analyzing trace with hash -783009165, now seen corresponding path program 1 times [2023-11-19 04:46:48,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:48,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649051980] [2023-11-19 04:46:48,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:48,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:48,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:48,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:48,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:46:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:48,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:46:48,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-19 04:46:48,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:46:48,480 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:48,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649051980] [2023-11-19 04:46:48,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649051980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:48,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:48,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:46:48,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041137410] [2023-11-19 04:46:48,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:48,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:46:48,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:48,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:46:48,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:46:48,563 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 04:46:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:48,613 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2023-11-19 04:46:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:46:48,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-11-19 04:46:48,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:48,626 INFO L225 Difference]: With dead ends: 61 [2023-11-19 04:46:48,627 INFO L226 Difference]: Without dead ends: 30 [2023-11-19 04:46:48,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:46:48,638 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:48,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:46:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-19 04:46:48,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-19 04:46:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 04:46:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2023-11-19 04:46:48,716 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 55 [2023-11-19 04:46:48,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:48,717 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2023-11-19 04:46:48,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 04:46:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-11-19 04:46:48,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 04:46:48,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:48,723 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:48,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:46:48,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:48,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:48,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1077986871, now seen corresponding path program 1 times [2023-11-19 04:46:48,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:48,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514770193] [2023-11-19 04:46:48,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:48,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:48,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:48,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:48,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:46:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:49,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:46:49,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 04:46:49,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:46:49,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514770193] [2023-11-19 04:46:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514770193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:49,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:49,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:46:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341411168] [2023-11-19 04:46:49,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:49,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:46:49,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:49,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:46:49,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:46:49,584 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-19 04:46:49,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:49,797 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2023-11-19 04:46:49,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:46:49,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2023-11-19 04:46:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:49,802 INFO L225 Difference]: With dead ends: 67 [2023-11-19 04:46:49,802 INFO L226 Difference]: Without dead ends: 65 [2023-11-19 04:46:49,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:46:49,805 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 47 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:49,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 237 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:46:49,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-19 04:46:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 44. [2023-11-19 04:46:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 04:46:49,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2023-11-19 04:46:49,828 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 55 [2023-11-19 04:46:49,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:49,829 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-11-19 04:46:49,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-19 04:46:49,830 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2023-11-19 04:46:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 04:46:49,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:49,833 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:49,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:50,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:50,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:46:50,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:50,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1175858658, now seen corresponding path program 1 times [2023-11-19 04:46:50,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:46:50,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839860616] [2023-11-19 04:46:50,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:50,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:46:50,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:46:50,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:46:50,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:46:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:50,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:46:50,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:51,428 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 04:46:51,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:46:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-19 04:46:52,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:46:52,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839860616] [2023-11-19 04:46:52,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839860616] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:46:52,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2144282570] [2023-11-19 04:46:52,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:52,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:46:52,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:46:52,062 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:46:52,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 04:46:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:52,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 04:46:52,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 04:46:53,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:46:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-19 04:46:53,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2144282570] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:46:53,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161157578] [2023-11-19 04:46:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:53,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:46:53,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:53,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:46:53,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 04:46:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:53,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 04:46:53,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:46:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-19 04:46:54,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:46:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-19 04:46:54,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161157578] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:46:54,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 04:46:54,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2023-11-19 04:46:54,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800030542] [2023-11-19 04:46:54,899 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 04:46:54,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 04:46:54,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:46:54,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 04:46:54,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-19 04:46:54,903 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 04:46:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:59,124 INFO L93 Difference]: Finished difference Result 79 states and 97 transitions. [2023-11-19 04:46:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 04:46:59,126 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 56 [2023-11-19 04:46:59,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:59,127 INFO L225 Difference]: With dead ends: 79 [2023-11-19 04:46:59,127 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:46:59,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2023-11-19 04:46:59,133 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:59,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 228 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 04:46:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:46:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:46:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:46:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:46:59,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2023-11-19 04:46:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:59,136 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:46:59,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 04:46:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:46:59,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:46:59,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:46:59,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:59,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:59,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:46:59,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:46:59,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:47:01,016 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 40) no Hoare annotation was computed. [2023-11-19 04:47:01,017 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2023-11-19 04:47:01,017 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2023-11-19 04:47:01,017 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2023-11-19 04:47:01,017 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 04:47:01,018 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 04:47:01,018 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 04:47:01,018 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-19 04:47:01,018 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 62 73) no Hoare annotation was computed. [2023-11-19 04:47:01,018 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 04:47:01,019 INFO L895 garLoopResultBuilder]: At program point L65-2(lines 65 71) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,019 INFO L899 garLoopResultBuilder]: For program point L65-3(lines 65 71) no Hoare annotation was computed. [2023-11-19 04:47:01,019 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 04:47:01,019 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 04:47:01,020 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,020 INFO L895 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,020 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 58 61) no Hoare annotation was computed. [2023-11-19 04:47:01,021 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 39) no Hoare annotation was computed. [2023-11-19 04:47:01,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:47:01,021 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 30) no Hoare annotation was computed. [2023-11-19 04:47:01,021 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,022 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 41 55) no Hoare annotation was computed. [2023-11-19 04:47:01,022 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-19 04:47:01,022 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,022 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,023 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:47:01,023 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 38) no Hoare annotation was computed. [2023-11-19 04:47:01,023 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-19 04:47:01,023 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,024 INFO L895 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: (or (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)) (fp.geq ~var_1_6~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))))) (exists ((currentRoundingMode RoundingMode)) (and (fp.leq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (fp.geq ~var_1_6~0 (fp.neg ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))))) [2023-11-19 04:47:01,024 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 04:47:01,024 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 04:47:01,024 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 04:47:01,024 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 04:47:01,034 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 04:47:01,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:47:01,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_6~0, ~to_fp~32(currentRoundingMode, 4.6116860184273828E18)) && ~fp.geq~32(~var_1_6~0, ~to_fp~32(currentRoundingMode, 1/100000000000000000000))) could not be translated [2023-11-19 04:47:01,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_6~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000))) && ~fp.geq~32(~var_1_6~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 4.6116860184273828E18)))) could not be translated [2023-11-19 04:47:01,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:47:01 BoogieIcfgContainer [2023-11-19 04:47:01,060 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:47:01,061 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:47:01,061 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:47:01,061 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:47:01,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:47" (3/4) ... [2023-11-19 04:47:01,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:47:01,069 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 04:47:01,075 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 04:47:01,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 04:47:01,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:47:01,077 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:47:01,201 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:47:01,201 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:47:01,202 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:47:01,202 INFO L158 Benchmark]: Toolchain (without parser) took 14483.75ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 43.3MB in the beginning and 69.7MB in the end (delta: -26.5MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-19 04:47:01,203 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 67.1MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:01,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.44ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 43.1MB in the beginning and 65.4MB in the end (delta: -22.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-19 04:47:01,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.08ms. Allocated memory is still 86.0MB. Free memory was 65.4MB in the beginning and 63.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:01,204 INFO L158 Benchmark]: Boogie Preprocessor took 67.87ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:01,205 INFO L158 Benchmark]: RCFGBuilder took 588.94ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 50.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:47:01,206 INFO L158 Benchmark]: TraceAbstraction took 13121.20ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 49.8MB in the beginning and 75.0MB in the end (delta: -25.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:01,206 INFO L158 Benchmark]: Witness Printer took 141.13ms. Allocated memory is still 125.8MB. Free memory was 75.0MB in the beginning and 69.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:47:01,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 67.1MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.44ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 43.1MB in the beginning and 65.4MB in the end (delta: -22.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.08ms. Allocated memory is still 86.0MB. Free memory was 65.4MB in the beginning and 63.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.87ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 588.94ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 50.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13121.20ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 49.8MB in the beginning and 75.0MB in the end (delta: -25.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 141.13ms. Allocated memory is still 125.8MB. Free memory was 75.0MB in the beginning and 69.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_6~0, ~to_fp~32(currentRoundingMode, 4.6116860184273828E18)) && ~fp.geq~32(~var_1_6~0, ~to_fp~32(currentRoundingMode, 1/100000000000000000000))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.leq~32(~var_1_6~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1/100000000000000000000))) && ~fp.geq~32(~var_1_6~0, ~fp.neg~32(~to_fp~32(currentRoundingMode, 4.6116860184273828E18)))) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 3, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 503 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 344 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 318 IncrementalHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 159 mSDtfsCounter, 318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=2, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 37 PreInvPairs, 60 NumberOfFragments, 218 HoareAnnotationTreeSize, 37 FomulaSimplifications, 142 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 872 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 438 ConstructedInterpolants, 30 QuantifiedInterpolants, 1504 SizeOfPredicates, 55 NumberOfNonLiveVariables, 470 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 860/896 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-19 04:47:01,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9f2e7d0-0af1-40b8-a4f4-9ea2fc97eabd/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE